Steam-engine cylinder.



No.'76 8,*105. PATENTED AUG. 23, 1904. A. L. WILLIAMS.

STEAM ENGINE CYLINDER.

APPLIOATION FILED NOV. 20, 1903.

N0 MODEL.

WITNESSES; I I YiNVENTOR 8) ii: /4//0r/n:y I

Patented August 23, 1904.

UNITED STATES PATENT OFFICE;

ALBERT L. WILLIAMS, oFBRooKLYN, NEW YORK, AssIeNoRTo JOHN s. BUSHNELLAND AMOS P. JOSLIN, OF BROOKLYN, NEW YORK.

' STEAM-ENGINE CYLINDER.

SPECIFICATION forming part of Letters Patent No. 768,105, dated August23, 1904.

Application filed November 20, 1903. Serial No. 182,034. (No model.) 7

To all whom it may concern:

Be it known that I, ALBERT L. WILLIAMS, a citizen of the United States,and a resident of Brooklyn, in the county of Kings and State of NewYork, have invented a certain new and useful Improvement in Steam-EngineCylinders, of which the following is a specification.

This invention relates to means for preventing radiation fromsteam-cylinders; and it consists of features ofconstruction,arrangements, and combinations ofdevices hereinafterdescribed, and more particularly pointed out in the appended claims.

The invention is illustrated in connection with a steam-indicator in theaccompanying drawing, forming part hereof.

In the drawing the reference A marks the usual rotatory paper-holdingcylinder; B, a hollow case on orfrom'which the cylinder A is supported;C, a parallel-motion for coaction with the cylinder A; D, a connectionbetween the motion, C- and the piston E. The foregoing parts are or maybe of any known or usual construction and operation and form noessential part of the present invention.

A tubular case 1 projects downward from and opens into the case B andhas it lower end provided with external screw-threads and its upper endprovided with an internal stop 00, preferably in the form of a flange.Acasing 3 is connected with the case 1 by screw-threads 2, as shown, andsuitable. means, as a setscrew, may be employed to prevent undesirablerotation of the casing 3. The lower end of the casing 3 is formed withan upwardlyflaring steam-inlet 4, the cylindrical and the conical partsof the casing 3 being'joined by a ledge or shoulder against which atubular intermediate casing 5 abuts, as shown. I The casing 5 isprovided with external flanges 6 at its ends for centering it in thecasing 3 and for providing an air-space 7 between the outer and theintermediate casings 3 and 5.

It is not essential that the flanges 6 fit tightly it abuts and ispressed when the casing 3 is screwed onto the case 1.

The reference 8 designates the steam-cylinder, which may be securedinplace in any suitable manner, but which in the instance shown in thedrawing is held only at its upper end in the casing 5 and is separatedat all other points from the said casing 5, thus leaving a steam-space 9or steam-jacket between the cylinder 8 and the casing 5, with a clearannular opening at the bottom of such jacket; but it must be understoodthat the cylinder 8 may be otherwise secured in place and other means beprovided for admitting steam into the space 9 and drawing off water ofcondensation therefrom without departing from this invention. The flareof the induction 4 secures that the entering steam shall readily enterthe steam-jacket, while also permitting H of the instant escape of anywater of condensation in said jacket, which water may form on theadmission of steam thereinto. Once the cylinder 8 and other parts arewarmed up the air and steam jackets keep an even temperature within it,so that the full pressure of as to obviate any description thereofherein.

By preference the casings 1 and 3 are imperforate.

What is claimed is' '1. The combination of an exteriorly-screwthreadedcase provided with an internal stop, a casing screwed onto said case andprovided with an internal stop or ledge, an intermediate casingconnected in a steam-tight manner at each end with said case and casingand separated therefrom to form an air-space and also abutting againstsaid stops, and a steam jacketed steam-cylinder held by and within saidintermediate casing.

2. The combination of a vertical case provided with an internal stop orflange, a casing connected. with said case and provided with an internalledge or stop, an intermediate casing abutting against said stops andconnected in a steam-tight manner at each end Signed at New York, in thecounty 01 New with the case and casing and separated there- York andState of New York, this 1 3th (1:1 y of IO from between its ends ltoforiln air space 011' November, A. I). 1903.

jacket, and a steam-cy inder ie within saic r intermediate casing withan open-bottomed ALBILRL lLLIAMb' steam space or jacket between saidcylinder Vitnesses: and casing, with an admission-port below said FRANKRYALL, cylinder. R. V. BARKLEY.

